Display screen or a portion thereof with graphical user interface



The sole FIGURE is a front view of a display screen or portion thereof with graphical user interface showing our new design.

The dot-dot-dash broken line shows the display screen, the short dash-dash broken lines show portions of the graphical user interface, and the dot-dash broken line defines a boundary of the claimed design; the broken lines form no part of the claimed design. 

CLAIM The ornamental design for a display screen or a portion thereof with graphical user interface, as shown and described. 